Feature: Material: APET/CPP Color: silver gray double layer Size: 5*8cm, 6*9cm, 7*16cm, 8*15cm, 9*13cm Performance detail: 1. Moisture-proof, dustproof , anti-static, reusable and reusable. 2. Prevents the accumulation of static charges and protects sensitive electronic components from damage by electric discharges and electric fields. 3. The bags are easy to close and recycle 4: Waterproof and resealable, the bag is easy to close and recycle and can be reused. 5: Prevents the accumulation of static charge and protects sensitive electronic components from damage by discharges and electric fields. Package includes: 100 anti-static bags - Please allow slight deviations in color and size, thank you!